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ICA:

See Independent Computing Architecture

Ignored processes

Processes that Resource Manager, if installed, is configured not to monitor. To stop monitoring a process, choose add process and type the exact name of the process.

iDen

Motorola's new service that allows 64Kb connections from your laptop via your mobile phone.

IIS:

See Internet Information Server

IMA:

See Independent Management Architecture

Independent Computing Architecture (ICA)

A Distributed Presentation Services protocol that allows clients to establish sessions with the MetaFrame XP server and to run server-based applications as if they were installed locally. Though the client device does not require a hard drive, it can still run the most up-to-date programs. Being platform independent, ICA can run on practically any client platform.

Independent Computing Architecture (ICA) browsing

Citrix servers communicate with each other through a process known as ICA browsing. ICA browsing is protocol-specific, and the browser settings of a particular Citrix server can be managed for each protocol. By default, a Citrix server will be able to communicate with all other Citrix servers on its subnet through ICA browsing. When two or more Citrix servers are on the same subnet, they will perform an ICA browser election, and one of the servers will declare itself the ICA Master browser. This process happens automatically, and a set of rules allows the servers to determine which server will be the ICA Master browser. However, by configuring the ICA browser settings in the Citrix Server Administration utility, administrators can control which servers will participate in the browser elections and which server or servers will become ICA browsers.

Independent Computing Architecture (ICA) Client device

This component is defined within an NFuse system as any computing device capable of launching an ICA session and a Web browser. Several examples include PCs, Net appliances such as PDAs or thin client terminals, and UNIX workstations. The ICA Client device works together with the Web browser and the ICA Client as a two-part system. The Web browser is capable of viewing the application set and downloading the ICA files while the ICA Client acts as the engine to launch the ICA sessions.

Independent Computing Architecture (ICA) display

This tab controls the manner in which data is transmitted to the client. The default setting in this section of the server farm properties are optimized for client performance. In most cases, there will be no need to change these settings. However, if you have users who access the farm across low-bandwidth links, you may want to adjust these settings for optimal performance.

Independent Computing Architecture (ICA) gateways

ICA gateways provide virtual links between servers and farms to tunnel all traffic to allow MetaFrame to scale outside a single network. Although MetaFrame XP does not require ICA gateways to perform this function, they are still used for backward compatibility with MetaFrame 1.8. Because ICA browser information is protocol-specific, ICA gateways are bound to one protocol. ICA gateways can be set up for TCP/IP, IPX, or both. When a gateway is set up for one protocol, the server will be able to obtain updates from remote servers for that protocol exclusively.

Independent Computing Architecture (ICA) PassThrough

This is essentially publishing Program Neighborhood to ICA clients that do not support connecting to server farms. ICA PassThrough is installed on a MetaFrame XP server by default and resides on the server in the subfolder %systemroot%\system32\ICA PassThrough. To enable ICA PassThrough, publish PN.EXE in an NT Domain scope and create a custom connection to the published application. Essentially, this type of connection is an ICA session within an ICA session, but special modifications to ICA PassThrough increase the overall performance.

Independent Management Architecture (IMA)

IMA is an architectural model and a communications protocol. IMA provides not only an architectural foundation, but also a server-to-server communications bridge on UDP 2512 for license pooling, published applications, and load balancing information. IMA enables you to group servers into farms regardless of their location or subnet. IMA provides a scalable architecture that allows server farms to be installed quickly, span several subnets, and yet still be managed from a centralized perspective. It also introduces a level of fault tolerance that permits any one server to fail without affecting the entire farm.

Indirect mode

This was designed to work around the limitations of access as a database application. By utilizing indirect mode, each server must communicate directly with the IMA services on the host server. The single host server is then the only service directly communicating with access preventing database corruption.

Installation diskettes

These are created from the ICA Client Creator in the Citrix toolbar. This is also the most tedious and time-consuming method of distributing the ICA client. The client installation disk method of deployment is mostly for smaller companies that do not want to set up a network share point or remote locations that need to be sent disks when installing over a wide area network (WAN) line is too costly or too slow to be practical.

Integrated Services Digital Network (ISDN)

Integrated Services indicates the provider offers voice and data services over the same medium. Digital Network is a reminder that ISDN was born out of the digital nature of the intercarrier and intracarrier networks. ISDN runs across the same copper wiring that carries regular telephone service. Before attenuation and noise cause the signal to be unintelligible, an ISDN circuit can run a maximum of 18,000 feet. A repeater doubles this distance to 36,000 feet.

Internet Information Service (IIS)

Windows NT Web browser software that supports Secure Sockets Layer (SSL) security protocol from Netscape. IIS provides support for Web site creation, configuration, and management, along with Network News Transfer Protocol (NNTP), File Transfer Protocol (FTP), and Simple Mail Transfer Protocol (SMTP).

Internet Protocol (IP) range

This rule monitors the Client's Transmission Control Protocol/Internet Protocol (TCP/IP) address. Within this rule you are able to allow or disallow a range or several ranges of IP addresses.

Interoperability mode

Within interoperability mode, MetaFrame XP provides the ability to operate in cooperation with MetaFrame 1.8 to continue providing application services to users. Due to the nature of the operation of interoperability mode, several factors must be taken into consideration when using it.

Interrupt ReQuest (IRQ)

An electronic signal that is sent to the computer's processor requiring the processor's attention. Also, a computer instruction designed to interrupt a program for an Input/Output (I/O).

IRQ:

See Interrupt ReQuest

ISDN:

See Integrated Services Digital Network

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